An adjustment in Richland County borders that threatens to oust school board member Kim Murphy occurred in 1995, state officials said Wednesday.

It came during an update to settle confusion on Columbia’s annexation of commercial areas along its boundary with adjoining Lexington County, said Bobby Bowers, who oversees political geography for the State Budget and Control Board.

He couldn’t explain why the neighborhood near Chapin where Murphy lives is listed by local officials as part of Richland County. The change made 18 years ago says she lives just inside Lexington County.

Murphy, elected to the board in November 2010 to represent Richland County, is challenging an effort to remove her for nonresidency. Board members appointed retired Circuit Judge Thomas Cooper to review the matter.